./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:24:12,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:24:12,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:24:12,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:24:12,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:24:12,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:24:12,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:24:12,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:24:12,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:24:12,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:24:12,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:24:12,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:24:12,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:24:12,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:24:12,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:24:12,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:24:12,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:24:12,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:24:12,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:24:12,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:24:12,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:24:12,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:24:12,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:24:12,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:24:12,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:24:12,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:24:12,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:24:12,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:24:12,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:24:12,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:24:12,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:24:12,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:24:12,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:24:12,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:24:12,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:24:12,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:24:12,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:24:12,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:24:12,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:24:12,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:24:12,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:24:12,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:24:12,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:24:12,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:24:12,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:24:12,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:24:12,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:24:12,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:24:12,249 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:24:12,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:24:12,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:24:12,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:24:12,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:24:12,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:24:12,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:24:12,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:24:12,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:24:12,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:24:12,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:24:12,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:24:12,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:24:12,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:24:12,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:24:12,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:24:12,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:24:12,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:24:12,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:24:12,254 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:24:12,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:24:12,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:24:12,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:24:12,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 [2021-11-05 13:24:12,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:24:12,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:24:12,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:24:12,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:24:12,618 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:24:12,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-05 13:24:12,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a5640f1/b28ff15bf8e04d23826b2b35f89f35f4/FLAGdb5fd1b05 [2021-11-05 13:24:13,345 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:24:13,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-05 13:24:13,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a5640f1/b28ff15bf8e04d23826b2b35f89f35f4/FLAGdb5fd1b05 [2021-11-05 13:24:13,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a5640f1/b28ff15bf8e04d23826b2b35f89f35f4 [2021-11-05 13:24:13,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:24:13,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:24:13,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:24:13,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:24:13,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:24:13,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:24:13" (1/1) ... [2021-11-05 13:24:13,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9549c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:13, skipping insertion in model container [2021-11-05 13:24:13,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:24:13" (1/1) ... [2021-11-05 13:24:13,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:24:13,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:24:13,909 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-05 13:24:13,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-05 13:24:13,934 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:24:13,939 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:24:14,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,525 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,526 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,528 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,532 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:14,779 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:24:14,780 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:24:14,780 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:24:14,781 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:24:14,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:24:14,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:24:14,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:24:14,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:24:14,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:24:14,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:24:14,908 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:24:14,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:24:14,955 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:24:14,975 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-05 13:24:14,976 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-05 13:24:14,978 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:24:14,978 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:24:15,018 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,032 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:24:15,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:24:15,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:24:15,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:24:15,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:24:15,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:24:15,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:24:15,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:24:15,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:24:15,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:24:15,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:24:15,104 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:24:15,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:24:15,333 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:24:15,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15 WrapperNode [2021-11-05 13:24:15,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:24:15,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:24:15,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:24:15,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:24:15,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:24:15,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:24:15,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:24:15,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:24:15,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:24:15,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:24:15,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:24:15,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:24:15,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (1/1) ... [2021-11-05 13:24:15,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:24:15,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:24:15,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:24:15,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:24:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:24:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:24:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:24:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:24:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:24:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:24:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 13:24:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:24:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:24:16,054 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:24:16,055 INFO L299 CfgBuilder]: Removed 45 assume(true) statements. [2021-11-05 13:24:16,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:24:16 BoogieIcfgContainer [2021-11-05 13:24:16,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:24:16,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:24:16,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:24:16,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:24:16,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:24:13" (1/3) ... [2021-11-05 13:24:16,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36be89a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:24:16, skipping insertion in model container [2021-11-05 13:24:16,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:24:15" (2/3) ... [2021-11-05 13:24:16,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36be89a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:24:16, skipping insertion in model container [2021-11-05 13:24:16,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:24:16" (3/3) ... [2021-11-05 13:24:16,062 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_remove_harness.i [2021-11-05 13:24:16,066 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:24:16,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-05 13:24:16,101 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:24:16,107 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:24:16,110 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-05 13:24:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 72 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-05 13:24:16,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:16,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:16,135 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:24:16,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:16,142 INFO L85 PathProgramCache]: Analyzing trace with hash 505703481, now seen corresponding path program 1 times [2021-11-05 13:24:16,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:16,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841572542] [2021-11-05 13:24:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:16,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:16,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:16,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:16,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841572542] [2021-11-05 13:24:16,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841572542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:24:16,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:24:16,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:24:16,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559685754] [2021-11-05 13:24:16,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:24:16,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:24:16,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:16,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:24:16,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:24:16,491 INFO L87 Difference]: Start difference. First operand has 73 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 72 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:16,518 INFO L93 Difference]: Finished difference Result 138 states and 183 transitions. [2021-11-05 13:24:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:24:16,520 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-05 13:24:16,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:16,527 INFO L225 Difference]: With dead ends: 138 [2021-11-05 13:24:16,527 INFO L226 Difference]: Without dead ends: 68 [2021-11-05 13:24:16,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:24:16,534 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:16,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 2.23ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:24:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-05 13:24:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-05 13:24:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 67 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-11-05 13:24:16,576 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 24 [2021-11-05 13:24:16,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:16,579 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-11-05 13:24:16,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-11-05 13:24:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 13:24:16,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:16,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:16,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:24:16,582 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:24:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:16,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1496918578, now seen corresponding path program 1 times [2021-11-05 13:24:16,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:16,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119171201] [2021-11-05 13:24:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:16,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:16,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:16,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119171201] [2021-11-05 13:24:16,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119171201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:24:16,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:24:16,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:24:16,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612852883] [2021-11-05 13:24:16,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:24:16,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:24:16,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:16,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:24:16,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:24:16,796 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:16,868 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2021-11-05 13:24:16,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:24:16,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-05 13:24:16,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:16,871 INFO L225 Difference]: With dead ends: 110 [2021-11-05 13:24:16,872 INFO L226 Difference]: Without dead ends: 108 [2021-11-05 13:24:16,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.78ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:24:16,873 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 49 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.42ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:16,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 211 Invalid, 25 Unknown, 0 Unchecked, 5.52ms Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 31.42ms Time] [2021-11-05 13:24:16,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-05 13:24:16,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 70. [2021-11-05 13:24:16,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:16,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-05 13:24:16,889 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 27 [2021-11-05 13:24:16,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:16,890 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-05 13:24:16,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-05 13:24:16,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 13:24:16,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:16,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:16,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:24:16,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:24:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:16,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1495309864, now seen corresponding path program 1 times [2021-11-05 13:24:16,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:16,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191692305] [2021-11-05 13:24:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:16,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:17,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:17,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191692305] [2021-11-05 13:24:17,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191692305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:24:17,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:24:17,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 13:24:17,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099119031] [2021-11-05 13:24:17,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:24:17,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:24:17,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:24:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:24:17,115 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:17,132 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2021-11-05 13:24:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:24:17,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-05 13:24:17,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:17,135 INFO L225 Difference]: With dead ends: 122 [2021-11-05 13:24:17,135 INFO L226 Difference]: Without dead ends: 71 [2021-11-05 13:24:17,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:24:17,139 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.68ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:17,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 3 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 5.68ms Time] [2021-11-05 13:24:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-05 13:24:17,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-05 13:24:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.28125) internal successors, (82), 70 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 82 transitions. [2021-11-05 13:24:17,148 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 82 transitions. Word has length 27 [2021-11-05 13:24:17,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:17,148 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 82 transitions. [2021-11-05 13:24:17,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 82 transitions. [2021-11-05 13:24:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-05 13:24:17,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:17,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:17,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:24:17,150 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:24:17,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1847040760, now seen corresponding path program 1 times [2021-11-05 13:24:17,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:17,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570188900] [2021-11-05 13:24:17,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:17,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:17,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:17,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570188900] [2021-11-05 13:24:17,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570188900] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:24:17,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087651691] [2021-11-05 13:24:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:17,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:17,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:24:17,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:24:17,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 13:24:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:17,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-05 13:24:17,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:24:17,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-05 13:24:17,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-05 13:24:17,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:17,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:24:18,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-05 13:24:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:18,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087651691] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:24:18,160 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:24:18,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 12 [2021-11-05 13:24:18,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766088166] [2021-11-05 13:24:18,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:24:18,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 13:24:18,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:18,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 13:24:18,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:24:18,162 INFO L87 Difference]: Start difference. First operand 71 states and 82 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:18,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:18,264 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2021-11-05 13:24:18,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:24:18,265 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-05 13:24:18,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:18,266 INFO L225 Difference]: With dead ends: 123 [2021-11-05 13:24:18,266 INFO L226 Difference]: Without dead ends: 72 [2021-11-05 13:24:18,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 117.37ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-05 13:24:18,267 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 55 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.71ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.91ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:18,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 454 Invalid, 50 Unknown, 0 Unchecked, 1.71ms Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 81.91ms Time] [2021-11-05 13:24:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-05 13:24:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-11-05 13:24:18,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 71 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2021-11-05 13:24:18,272 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 28 [2021-11-05 13:24:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:18,273 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2021-11-05 13:24:18,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2021-11-05 13:24:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:24:18,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:18,274 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:18,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 13:24:18,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:18,492 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:24:18,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:18,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1914272296, now seen corresponding path program 2 times [2021-11-05 13:24:18,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:18,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928023448] [2021-11-05 13:24:18,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:18,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:18,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:18,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928023448] [2021-11-05 13:24:18,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928023448] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:24:18,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302897694] [2021-11-05 13:24:18,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:24:18,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:18,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:24:18,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:24:18,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 13:24:18,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:24:18,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:24:18,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-05 13:24:18,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:24:18,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-05 13:24:18,988 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-05 13:24:18,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-05 13:24:19,069 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-05 13:24:19,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2021-11-05 13:24:19,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:19,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:24:19,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 122 [2021-11-05 13:24:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:19,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302897694] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:24:19,388 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:24:19,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-11-05 13:24:19,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830159723] [2021-11-05 13:24:19,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:24:19,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-05 13:24:19,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:19,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-05 13:24:19,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-11-05 13:24:19,389 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:19,722 INFO L93 Difference]: Finished difference Result 255 states and 290 transitions. [2021-11-05 13:24:19,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 13:24:19,722 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-05 13:24:19,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:19,723 INFO L225 Difference]: With dead ends: 255 [2021-11-05 13:24:19,724 INFO L226 Difference]: Without dead ends: 204 [2021-11-05 13:24:19,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 320.60ms TimeCoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2021-11-05 13:24:19,725 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 191 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 151.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.71ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 172.90ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:19,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 845 Invalid, 122 Unknown, 0 Unchecked, 2.71ms Time], IncrementalHoareTripleChecker [8 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 172.90ms Time] [2021-11-05 13:24:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-05 13:24:19,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 79. [2021-11-05 13:24:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 78 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:19,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2021-11-05 13:24:19,732 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 29 [2021-11-05 13:24:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:19,733 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2021-11-05 13:24:19,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:19,733 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2021-11-05 13:24:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 13:24:19,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:19,734 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:19,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 13:24:19,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:19,936 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:24:19,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:19,936 INFO L85 PathProgramCache]: Analyzing trace with hash -810243624, now seen corresponding path program 3 times [2021-11-05 13:24:19,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:19,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330181191] [2021-11-05 13:24:19,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:19,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:20,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:20,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330181191] [2021-11-05 13:24:20,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330181191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:24:20,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359384402] [2021-11-05 13:24:20,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-05 13:24:20,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:20,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:24:20,099 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:24:20,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 13:24:20,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-05 13:24:20,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:24:20,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-05 13:24:20,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:24:20,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:20,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:24:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:20,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359384402] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:24:20,802 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:24:20,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 16 [2021-11-05 13:24:20,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698209594] [2021-11-05 13:24:20,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:24:20,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-05 13:24:20,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-05 13:24:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-11-05 13:24:20,804 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:21,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:21,846 INFO L93 Difference]: Finished difference Result 136 states and 161 transitions. [2021-11-05 13:24:21,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-05 13:24:21,855 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-05 13:24:21,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:21,856 INFO L225 Difference]: With dead ends: 136 [2021-11-05 13:24:21,857 INFO L226 Difference]: Without dead ends: 80 [2021-11-05 13:24:21,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1122.47ms TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2021-11-05 13:24:21,861 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 177 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.42ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:21,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 464 Invalid, 110 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [31 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 127.42ms Time] [2021-11-05 13:24:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-05 13:24:21,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-05 13:24:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 79 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2021-11-05 13:24:21,873 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 31 [2021-11-05 13:24:21,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:21,873 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-11-05 13:24:21,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:24:21,874 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2021-11-05 13:24:21,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 13:24:21,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:21,875 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:21,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 13:24:22,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:22,096 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:24:22,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:22,097 INFO L85 PathProgramCache]: Analyzing trace with hash 206116312, now seen corresponding path program 4 times [2021-11-05 13:24:22,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:22,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110308811] [2021-11-05 13:24:22,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:22,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:22,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:22,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110308811] [2021-11-05 13:24:22,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110308811] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:24:22,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262860198] [2021-11-05 13:24:22,437 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-05 13:24:22,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:22,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:24:22,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:24:22,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 13:24:22,590 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-05 13:24:22,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:24:22,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-05 13:24:22,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:24:22,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-05 13:24:22,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-05 13:24:22,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 13:24:22,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-05 13:24:22,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:22,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2021-11-05 13:24:23,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 71 [2021-11-05 13:24:23,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-05 13:24:23,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 93 [2021-11-05 13:24:23,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 104 [2021-11-05 13:24:23,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:23,640 INFO L354 Elim1Store]: treesize reduction 228, result has 26.0 percent of original size [2021-11-05 13:24:23,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 147 treesize of output 116 [2021-11-05 13:24:24,002 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-05 13:24:24,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 34 [2021-11-05 13:24:24,032 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:24,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:24,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37862 treesize of output 37854 [2021-11-05 13:26:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 19 refuted. 36 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:28,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262860198] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:26:28,276 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:26:28,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 43 [2021-11-05 13:26:28,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966820197] [2021-11-05 13:26:28,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:26:28,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-05 13:26:28,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:26:28,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-05 13:26:28,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1540, Unknown=58, NotChecked=0, Total=1806 [2021-11-05 13:26:28,279 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 43 states, 43 states have (on average 2.0697674418604652) internal successors, (89), 43 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:29,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:26:29,598 INFO L93 Difference]: Finished difference Result 172 states and 196 transitions. [2021-11-05 13:26:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-05 13:26:29,599 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.0697674418604652) internal successors, (89), 43 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-05 13:26:29,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:26:29,600 INFO L225 Difference]: With dead ends: 172 [2021-11-05 13:26:29,600 INFO L226 Difference]: Without dead ends: 121 [2021-11-05 13:26:29,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 121881.27ms TimeCoverageRelationStatistics Valid=454, Invalid=2788, Unknown=64, NotChecked=0, Total=3306 [2021-11-05 13:26:29,602 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 102 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 404.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.53ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 474.22ms IncrementalHoareTripleChecker+Time [2021-11-05 13:26:29,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1385 Invalid, 440 Unknown, 0 Unchecked, 4.53ms Time], IncrementalHoareTripleChecker [46 Valid, 348 Invalid, 0 Unknown, 46 Unchecked, 474.22ms Time] [2021-11-05 13:26:29,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-05 13:26:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 83. [2021-11-05 13:26:29,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 76 states have (on average 1.25) internal successors, (95), 82 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:29,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2021-11-05 13:26:29,616 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 95 transitions. Word has length 37 [2021-11-05 13:26:29,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:26:29,616 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 95 transitions. [2021-11-05 13:26:29,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.0697674418604652) internal successors, (89), 43 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:29,617 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 95 transitions. [2021-11-05 13:26:29,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 13:26:29,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:29,618 INFO L514 BasicCegarLoop]: trace histogram [11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:29,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-05 13:26:29,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:26:29,840 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:26:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1561565263, now seen corresponding path program 1 times [2021-11-05 13:26:29,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:26:29,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540247725] [2021-11-05 13:26:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:26:29,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:26:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:26:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 13:26:30,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:26:30,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540247725] [2021-11-05 13:26:30,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540247725] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:26:30,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685707635] [2021-11-05 13:26:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:26:30,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:26:30,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:26:30,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:26:30,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 13:26:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:26:30,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-05 13:26:30,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:30,709 INFO L354 Elim1Store]: treesize reduction 107, result has 12.3 percent of original size [2021-11-05 13:26:30,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 258 treesize of output 163 [2021-11-05 13:26:30,740 INFO L354 Elim1Store]: treesize reduction 175, result has 9.8 percent of original size [2021-11-05 13:26:30,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 245 treesize of output 78 [2021-11-05 13:26:30,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 79 [2021-11-05 13:26:31,028 INFO L354 Elim1Store]: treesize reduction 53, result has 7.0 percent of original size [2021-11-05 13:26:31,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 46 [2021-11-05 13:26:31,035 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-05 13:26:31,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 21 [2021-11-05 13:26:31,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-05 13:26:31,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-11-05 13:26:31,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 13:26:31,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2021-11-05 13:26:31,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2021-11-05 13:26:31,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-05 13:26:31,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-05 13:26:31,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2021-11-05 13:26:31,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 104 [2021-11-05 13:26:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:31,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 116 [2021-11-05 13:26:32,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:32,041 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 13:26:32,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 162 treesize of output 128 [2021-11-05 13:26:32,422 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 13:26:32,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 85 treesize of output 37 [2021-11-05 13:26:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:32,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:36,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81904 treesize of output 81892 [2021-11-05 13:26:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:38,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685707635] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:26:38,689 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:26:38,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19, 17] total 46 [2021-11-05 13:26:38,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533962066] [2021-11-05 13:26:38,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:26:38,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-05 13:26:38,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:26:38,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-05 13:26:38,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1828, Unknown=0, NotChecked=0, Total=2070 [2021-11-05 13:26:38,691 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. Second operand has 46 states, 46 states have (on average 2.130434782608696) internal successors, (98), 46 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:27:01,825 WARN L230 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 181 DAG size of output: 109 [2021-11-05 13:27:14,960 WARN L230 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 172 DAG size of output: 109 [2021-11-05 13:27:26,618 WARN L230 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 163 DAG size of output: 109 [2021-11-05 13:27:42,362 WARN L230 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 209 DAG size of output: 137 [2021-11-05 13:27:51,547 WARN L230 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 154 DAG size of output: 109 [2021-11-05 13:28:07,059 WARN L230 SmtUtils]: Spent 9.41s on a formula simplification. DAG size of input: 200 DAG size of output: 137 [2021-11-05 13:28:16,284 WARN L230 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 145 DAG size of output: 109 [2021-11-05 13:28:30,376 WARN L230 SmtUtils]: Spent 9.50s on a formula simplification. DAG size of input: 191 DAG size of output: 137 [2021-11-05 13:28:39,233 WARN L230 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 136 DAG size of output: 109 [2021-11-05 13:28:54,181 WARN L230 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 208 DAG size of output: 136 [2021-11-05 13:29:06,762 WARN L230 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 182 DAG size of output: 137 [2021-11-05 13:29:15,272 WARN L230 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2021-11-05 13:29:32,126 WARN L230 SmtUtils]: Spent 11.03s on a formula simplification. DAG size of input: 211 DAG size of output: 139 [2021-11-05 13:29:45,766 WARN L230 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 199 DAG size of output: 136 [2021-11-05 13:29:57,566 WARN L230 SmtUtils]: Spent 8.61s on a formula simplification. DAG size of input: 173 DAG size of output: 137 [2021-11-05 13:30:05,615 WARN L230 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2021-11-05 13:30:21,050 WARN L230 SmtUtils]: Spent 10.41s on a formula simplification. DAG size of input: 202 DAG size of output: 139 [2021-11-05 13:30:34,260 WARN L230 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 190 DAG size of output: 136 [2021-11-05 13:30:45,943 WARN L230 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 164 DAG size of output: 137 [2021-11-05 13:30:53,479 WARN L230 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2021-11-05 13:31:08,206 WARN L230 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 193 DAG size of output: 139 [2021-11-05 13:31:20,286 WARN L230 SmtUtils]: Spent 8.61s on a formula simplification. DAG size of input: 181 DAG size of output: 136 [2021-11-05 13:31:31,425 WARN L230 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 155 DAG size of output: 137 [2021-11-05 13:31:51,243 WARN L230 SmtUtils]: Spent 9.45s on a formula simplification. DAG size of input: 184 DAG size of output: 139 [2021-11-05 13:32:03,322 WARN L230 SmtUtils]: Spent 8.63s on a formula simplification. DAG size of input: 172 DAG size of output: 136 [2021-11-05 13:32:13,452 WARN L230 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2021-11-05 13:32:32,194 WARN L230 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 175 DAG size of output: 139 [2021-11-05 13:32:43,803 WARN L230 SmtUtils]: Spent 8.51s on a formula simplification. DAG size of input: 163 DAG size of output: 136 [2021-11-05 13:32:54,052 WARN L230 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 137 DAG size of output: 137 [2021-11-05 13:33:06,520 WARN L230 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 166 DAG size of output: 139 [2021-11-05 13:33:17,816 WARN L230 SmtUtils]: Spent 8.58s on a formula simplification. DAG size of input: 154 DAG size of output: 136 [2021-11-05 13:33:26,608 WARN L230 SmtUtils]: Spent 6.95s on a formula simplification. DAG size of input: 128 DAG size of output: 128 [2021-11-05 13:33:38,777 WARN L230 SmtUtils]: Spent 8.82s on a formula simplification. DAG size of input: 157 DAG size of output: 139 [2021-11-05 13:33:49,099 WARN L230 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 145 DAG size of output: 136 [2021-11-05 13:33:59,707 WARN L230 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-11-05 13:34:10,029 WARN L230 SmtUtils]: Spent 8.00s on a formula simplification. DAG size of input: 136 DAG size of output: 136 [2021-11-05 13:34:20,637 WARN L230 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 139 DAG size of output: 139 [2021-11-05 13:34:29,054 WARN L230 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 127 DAG size of output: 127 [2021-11-05 13:34:38,748 WARN L230 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 130 DAG size of output: 130 [2021-11-05 13:34:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:39,808 INFO L93 Difference]: Finished difference Result 1537 states and 1737 transitions. [2021-11-05 13:34:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-05 13:34:39,810 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.130434782608696) internal successors, (98), 46 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-05 13:34:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:39,815 INFO L225 Difference]: With dead ends: 1537 [2021-11-05 13:34:39,816 INFO L226 Difference]: Without dead ends: 1484 [2021-11-05 13:34:39,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2474 ImplicationChecksByTransitivity, 468501.78ms TimeCoverageRelationStatistics Valid=1859, Invalid=9483, Unknown=0, NotChecked=0, Total=11342 [2021-11-05 13:34:39,820 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 12852 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16707.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12852 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.04ms SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17229.70ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:39,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12852 Valid, 2733 Invalid, 1107 Unknown, 0 Unchecked, 30.04ms Time], IncrementalHoareTripleChecker [327 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 17229.70ms Time] [2021-11-05 13:34:39,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2021-11-05 13:34:39,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 100. [2021-11-05 13:34:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 99 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2021-11-05 13:34:39,841 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 41 [2021-11-05 13:34:39,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:39,841 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2021-11-05 13:34:39,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.130434782608696) internal successors, (98), 46 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:39,841 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2021-11-05 13:34:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-05 13:34:39,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:39,842 INFO L514 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:39,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-05 13:34:40,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:40,056 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:34:40,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:40,056 INFO L85 PathProgramCache]: Analyzing trace with hash -389455329, now seen corresponding path program 1 times [2021-11-05 13:34:40,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:40,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221564153] [2021-11-05 13:34:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:40,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:40,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:40,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221564153] [2021-11-05 13:34:40,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221564153] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:34:40,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225872973] [2021-11-05 13:34:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:40,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:40,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:40,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:34:40,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-05 13:34:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:40,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:34:40,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-05 13:34:40,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:34:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-05 13:34:40,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225872973] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-05 13:34:40,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:34:40,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15, 4] total 17 [2021-11-05 13:34:40,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395783089] [2021-11-05 13:34:40,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:40,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:34:40,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:40,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:34:40,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-05 13:34:40,693 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:40,709 INFO L93 Difference]: Finished difference Result 180 states and 212 transitions. [2021-11-05 13:34:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:34:40,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-05 13:34:40,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:40,712 INFO L225 Difference]: With dead ends: 180 [2021-11-05 13:34:40,712 INFO L226 Difference]: Without dead ends: 139 [2021-11-05 13:34:40,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 170.44ms TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-05 13:34:40,713 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 49 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.31ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.59ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:40,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 192 Invalid, 5 Unknown, 0 Unchecked, 0.31ms Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 5.59ms Time] [2021-11-05 13:34:40,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-05 13:34:40,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 101. [2021-11-05 13:34:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 100 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 123 transitions. [2021-11-05 13:34:40,727 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 123 transitions. Word has length 44 [2021-11-05 13:34:40,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:40,727 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 123 transitions. [2021-11-05 13:34:40,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:40,728 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 123 transitions. [2021-11-05 13:34:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 13:34:40,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:40,729 INFO L514 BasicCegarLoop]: trace histogram [12, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:40,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-05 13:34:40,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:40,944 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:34:40,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:40,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1733262968, now seen corresponding path program 2 times [2021-11-05 13:34:40,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:40,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140755459] [2021-11-05 13:34:40,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:40,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:41,323 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 13:34:41,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:41,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140755459] [2021-11-05 13:34:41,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140755459] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:34:41,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483188713] [2021-11-05 13:34:41,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:34:41,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:41,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:41,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:34:41,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-05 13:34:41,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:34:41,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:34:41,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 108 conjunts are in the unsatisfiable core [2021-11-05 13:34:41,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:41,703 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-05 13:34:41,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 266 treesize of output 171 [2021-11-05 13:34:41,723 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-05 13:34:41,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 76 [2021-11-05 13:34:41,729 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-05 13:34:41,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 101 treesize of output 93 [2021-11-05 13:34:42,171 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-05 13:34:42,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 53 [2021-11-05 13:34:42,178 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-05 13:34:42,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 25 [2021-11-05 13:34:42,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-05 13:34:42,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-05 13:34:42,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 13:34:42,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,420 INFO L354 Elim1Store]: treesize reduction 72, result has 26.5 percent of original size [2021-11-05 13:34:42,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-05 13:34:42,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,544 INFO L354 Elim1Store]: treesize reduction 132, result has 21.0 percent of original size [2021-11-05 13:34:42,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 69 [2021-11-05 13:34:42,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,724 INFO L354 Elim1Store]: treesize reduction 204, result has 17.7 percent of original size [2021-11-05 13:34:42,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 75 treesize of output 86 [2021-11-05 13:34:42,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:42,951 INFO L354 Elim1Store]: treesize reduction 288, result has 15.5 percent of original size [2021-11-05 13:34:42,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 89 treesize of output 103 [2021-11-05 13:34:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:43,262 INFO L354 Elim1Store]: treesize reduction 384, result has 13.9 percent of original size [2021-11-05 13:34:43,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 103 treesize of output 120 [2021-11-05 13:34:43,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:43,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:43,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:43,963 INFO L354 Elim1Store]: treesize reduction 492, result has 12.6 percent of original size [2021-11-05 13:34:43,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 117 treesize of output 137 [2021-11-05 13:34:49,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:34:49,326 INFO L354 Elim1Store]: treesize reduction 612, result has 11.6 percent of original size [2021-11-05 13:34:49,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 42 case distinctions, treesize of input 131 treesize of output 154 [2021-11-05 13:35:12,192 WARN L228 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-05 13:35:12,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-11-05 13:35:12,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-05 13:35:12,194 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-05 13:35:12,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-05 13:35:12,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706759316] [2021-11-05 13:35:12,194 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-05 13:35:12,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-05 13:35:12,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:12,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-05 13:35:12,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=658, Unknown=1, NotChecked=0, Total=756 [2021-11-05 13:35:12,196 INFO L87 Difference]: Start difference. First operand 101 states and 123 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:35:12,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 6042.30ms TimeCoverageRelationStatistics Valid=97, Invalid=658, Unknown=1, NotChecked=0, Total=756 [2021-11-05 13:35:12,197 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:12,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 1 Unknown, 0 Unchecked, 0.07ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:35:12,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:12,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:12,404 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@320bea1d at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-05 13:35:12,409 INFO L158 Benchmark]: Toolchain (without parser) took 658895.28ms. Allocated memory was 58.7MB in the beginning and 251.7MB in the end (delta: 192.9MB). Free memory was 30.8MB in the beginning and 74.9MB in the end (delta: -44.1MB). Peak memory consumption was 149.2MB. Max. memory is 16.1GB. [2021-11-05 13:35:12,410 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:35:12,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1819.34ms. Allocated memory was 58.7MB in the beginning and 98.6MB in the end (delta: 39.8MB). Free memory was 30.5MB in the beginning and 64.9MB in the end (delta: -34.4MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2021-11-05 13:35:12,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 138.50ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 58.8MB in the end (delta: 6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-05 13:35:12,411 INFO L158 Benchmark]: Boogie Preprocessor took 57.44ms. Allocated memory is still 98.6MB. Free memory was 58.8MB in the beginning and 55.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-05 13:35:12,411 INFO L158 Benchmark]: RCFGBuilder took 523.64ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 53.6MB in the end (delta: 2.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-11-05 13:35:12,411 INFO L158 Benchmark]: TraceAbstraction took 656351.37ms. Allocated memory was 98.6MB in the beginning and 251.7MB in the end (delta: 153.1MB). Free memory was 53.1MB in the beginning and 74.9MB in the end (delta: -21.8MB). Peak memory consumption was 132.9MB. Max. memory is 16.1GB. [2021-11-05 13:35:12,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1819.34ms. Allocated memory was 58.7MB in the beginning and 98.6MB in the end (delta: 39.8MB). Free memory was 30.5MB in the beginning and 64.9MB in the end (delta: -34.4MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 138.50ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 58.8MB in the end (delta: 6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.44ms. Allocated memory is still 98.6MB. Free memory was 58.8MB in the beginning and 55.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 523.64ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 53.6MB in the end (delta: 2.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 656351.37ms. Allocated memory was 98.6MB in the beginning and 251.7MB in the end (delta: 153.1MB). Free memory was 53.1MB in the beginning and 74.9MB in the end (delta: -21.8MB). Peak memory consumption was 132.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@320bea1d de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@320bea1d: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:35:14,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:35:14,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:35:14,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:35:14,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:35:14,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:35:14,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:35:14,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:35:14,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:35:14,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:35:14,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:35:14,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:35:14,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:35:14,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:35:14,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:35:14,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:35:14,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:35:14,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:35:14,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:35:14,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:35:14,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:35:14,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:35:14,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:35:14,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:35:14,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:35:14,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:35:14,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:35:14,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:35:14,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:35:14,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:35:14,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:35:14,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:35:14,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:35:14,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:35:14,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:35:14,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:35:14,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:35:14,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:35:14,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:35:14,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:35:14,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:35:14,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 13:35:14,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:35:14,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:35:14,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:35:14,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:35:14,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:35:14,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:35:14,323 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:35:14,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:35:14,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:35:14,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:35:14,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:35:14,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:35:14,325 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 13:35:14,325 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 13:35:14,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:35:14,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:35:14,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:35:14,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:35:14,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:35:14,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:35:14,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:35:14,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:35:14,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:35:14,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:35:14,327 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 13:35:14,327 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 13:35:14,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:35:14,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:35:14,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:35:14,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:35:14,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 13:35:14,328 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 588c504bc2fd23c9ce280a0a1b43a680048f163183a3674ad6d00cde5eb05799 [2021-11-05 13:35:14,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:35:14,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:35:14,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:35:14,731 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:35:14,732 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:35:14,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-05 13:35:14,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f31c6a7e/94a80913c1c74d359e80e5620e7aaf45/FLAG20bfd23e3 [2021-11-05 13:35:15,552 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:35:15,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i [2021-11-05 13:35:15,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f31c6a7e/94a80913c1c74d359e80e5620e7aaf45/FLAG20bfd23e3 [2021-11-05 13:35:15,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f31c6a7e/94a80913c1c74d359e80e5620e7aaf45 [2021-11-05 13:35:15,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:35:15,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:35:15,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:35:15,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:35:15,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:35:15,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:35:15" (1/1) ... [2021-11-05 13:35:15,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f08b259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:15, skipping insertion in model container [2021-11-05 13:35:15,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:35:15" (1/1) ... [2021-11-05 13:35:15,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:35:15,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:35:16,009 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-05 13:35:16,014 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-05 13:35:16,030 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:35:16,037 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:35:16,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,683 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:16,932 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:35:16,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:35:16,934 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:35:16,935 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:35:16,936 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:35:16,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:35:16,937 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:35:16,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:35:16,938 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:35:16,939 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:35:17,033 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:35:17,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:35:17,105 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:35:17,118 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4496,4509] [2021-11-05 13:35:17,119 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_remove_harness.i[4556,4569] [2021-11-05 13:35:17,134 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:35:17,136 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:35:17,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,209 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,218 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,222 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:35:17,264 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:35:17,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:35:17,265 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:35:17,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:35:17,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:35:17,271 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:35:17,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:35:17,272 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:35:17,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:35:17,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:35:17,293 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:35:17,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:35:17,510 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:35:17,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17 WrapperNode [2021-11-05 13:35:17,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:35:17,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:35:17,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:35:17,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:35:17,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:35:17,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:35:17,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:35:17,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:35:17,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:35:17,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:35:17,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:35:17,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:35:17,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (1/1) ... [2021-11-05 13:35:17,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:35:17,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:17,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:35:17,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:35:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:35:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 13:35:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:35:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:35:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:35:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 13:35:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:35:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 13:35:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:35:18,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:35:18,598 INFO L299 CfgBuilder]: Removed 45 assume(true) statements. [2021-11-05 13:35:18,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:35:18 BoogieIcfgContainer [2021-11-05 13:35:18,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:35:18,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:35:18,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:35:18,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:35:18,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:35:15" (1/3) ... [2021-11-05 13:35:18,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecad1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:35:18, skipping insertion in model container [2021-11-05 13:35:18,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:35:17" (2/3) ... [2021-11-05 13:35:18,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecad1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:35:18, skipping insertion in model container [2021-11-05 13:35:18,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:35:18" (3/3) ... [2021-11-05 13:35:18,606 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_remove_harness.i [2021-11-05 13:35:18,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:35:18,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-05 13:35:18,673 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:35:18,689 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:35:18,689 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-05 13:35:18,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 72 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-05 13:35:18,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:18,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:18,711 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:35:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash 505703481, now seen corresponding path program 1 times [2021-11-05 13:35:18,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:35:18,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76951634] [2021-11-05 13:35:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:18,736 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:35:18,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:35:18,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:35:18,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 13:35:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:18,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-05 13:35:18,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:19,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:35:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:19,117 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:35:19,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76951634] [2021-11-05 13:35:19,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76951634] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:19,118 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:19,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 13:35:19,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672858948] [2021-11-05 13:35:19,120 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:19,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:35:19,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:35:19,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:35:19,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:35:19,169 INFO L87 Difference]: Start difference. First operand has 73 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 72 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:19,188 INFO L93 Difference]: Finished difference Result 138 states and 183 transitions. [2021-11-05 13:35:19,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:35:19,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-05 13:35:19,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:19,196 INFO L225 Difference]: With dead ends: 138 [2021-11-05 13:35:19,197 INFO L226 Difference]: Without dead ends: 68 [2021-11-05 13:35:19,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.26ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:35:19,202 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:19,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:35:19,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-05 13:35:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-05 13:35:19,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.2950819672131149) internal successors, (79), 67 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:19,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2021-11-05 13:35:19,232 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 24 [2021-11-05 13:35:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:19,233 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2021-11-05 13:35:19,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2021-11-05 13:35:19,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 13:35:19,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:19,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:19,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:19,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:35:19,449 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:35:19,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:19,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1496918578, now seen corresponding path program 1 times [2021-11-05 13:35:19,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:35:19,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338700136] [2021-11-05 13:35:19,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:19,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:35:19,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:35:19,452 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:35:19,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 13:35:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:19,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 13:35:19,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:19,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:35:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:19,804 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:35:19,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338700136] [2021-11-05 13:35:19,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338700136] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:19,804 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:19,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 13:35:19,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943798498] [2021-11-05 13:35:19,805 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:19,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:35:19,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:35:19,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:35:19,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:35:19,808 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:19,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:19,856 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2021-11-05 13:35:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:35:19,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-05 13:35:19,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:19,859 INFO L225 Difference]: With dead ends: 119 [2021-11-05 13:35:19,860 INFO L226 Difference]: Without dead ends: 70 [2021-11-05 13:35:19,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.54ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:35:19,863 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.09ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.56ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:19,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 6 Unknown, 0 Unchecked, 4.09ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 17.56ms Time] [2021-11-05 13:35:19,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-05 13:35:19,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-05 13:35:19,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:19,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-05 13:35:19,880 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 27 [2021-11-05 13:35:19,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:19,881 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-05 13:35:19,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:19,881 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-05 13:35:19,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:35:19,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:19,882 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:19,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:20,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:35:20,088 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:35:20,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1915881010, now seen corresponding path program 1 times [2021-11-05 13:35:20,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:35:20,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110898013] [2021-11-05 13:35:20,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:20,090 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:35:20,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:35:20,091 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:35:20,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 13:35:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:20,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-05 13:35:20,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:20,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:20,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:35:20,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:20,605 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:35:20,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110898013] [2021-11-05 13:35:20,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110898013] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:35:20,605 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:35:20,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-05 13:35:20,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338518862] [2021-11-05 13:35:20,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:35:20,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 13:35:20,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:35:20,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 13:35:20,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:35:20,607 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:20,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:20,915 INFO L93 Difference]: Finished difference Result 123 states and 144 transitions. [2021-11-05 13:35:20,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:35:20,921 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-05 13:35:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:20,922 INFO L225 Difference]: With dead ends: 123 [2021-11-05 13:35:20,922 INFO L226 Difference]: Without dead ends: 74 [2021-11-05 13:35:20,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 389.03ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-05 13:35:20,923 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.69ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.57ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:20,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 24 Unknown, 0 Unchecked, 1.69ms Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 76.57ms Time] [2021-11-05 13:35:20,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-05 13:35:20,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-05 13:35:20,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 73 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2021-11-05 13:35:20,933 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 29 [2021-11-05 13:35:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:20,933 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2021-11-05 13:35:20,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2021-11-05 13:35:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 13:35:20,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:20,935 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:20,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:21,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:35:21,140 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:35:21,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash -697220658, now seen corresponding path program 2 times [2021-11-05 13:35:21,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:35:21,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338139638] [2021-11-05 13:35:21,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:35:21,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:35:21,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:35:21,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:35:21,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 13:35:21,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-05 13:35:21,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:35:21,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 13:35:21,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-05 13:35:21,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:35:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-05 13:35:21,458 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:35:21,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338139638] [2021-11-05 13:35:21,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338139638] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:21,459 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:21,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 13:35:21,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528970353] [2021-11-05 13:35:21,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:21,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:35:21,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:35:21,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:35:21,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:35:21,461 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:21,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:21,493 INFO L93 Difference]: Finished difference Result 205 states and 231 transitions. [2021-11-05 13:35:21,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:35:21,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 13:35:21,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:21,500 INFO L225 Difference]: With dead ends: 205 [2021-11-05 13:35:21,500 INFO L226 Difference]: Without dead ends: 162 [2021-11-05 13:35:21,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.52ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:35:21,504 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 147 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.10ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.31ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:21,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 198 Invalid, 8 Unknown, 0 Unchecked, 2.10ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 16.31ms Time] [2021-11-05 13:35:21,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-05 13:35:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 78. [2021-11-05 13:35:21,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.267605633802817) internal successors, (90), 77 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2021-11-05 13:35:21,523 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 33 [2021-11-05 13:35:21,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:21,527 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2021-11-05 13:35:21,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:21,528 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2021-11-05 13:35:21,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 13:35:21,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:21,530 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:21,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:21,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:35:21,747 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:35:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:21,747 INFO L85 PathProgramCache]: Analyzing trace with hash -695611944, now seen corresponding path program 1 times [2021-11-05 13:35:21,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:35:21,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499157728] [2021-11-05 13:35:21,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:21,748 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:35:21,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:35:21,750 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:35:21,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 13:35:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:21,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:35:21,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:22,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:35:22,873 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:22,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:35:22,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499157728] [2021-11-05 13:35:22,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499157728] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:35:22,874 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:35:22,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-05 13:35:22,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238553881] [2021-11-05 13:35:22,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:35:22,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-05 13:35:22,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:35:22,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-05 13:35:22,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-05 13:35:22,876 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:24,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:24,661 INFO L93 Difference]: Finished difference Result 139 states and 166 transitions. [2021-11-05 13:35:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-05 13:35:24,663 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 13:35:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:24,663 INFO L225 Difference]: With dead ends: 139 [2021-11-05 13:35:24,663 INFO L226 Difference]: Without dead ends: 86 [2021-11-05 13:35:24,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2288.33ms TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2021-11-05 13:35:24,665 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 173.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.96ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196.27ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:24,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 838 Invalid, 86 Unknown, 0 Unchecked, 1.96ms Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 196.27ms Time] [2021-11-05 13:35:24,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-05 13:35:24,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-05 13:35:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.240506329113924) internal successors, (98), 85 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2021-11-05 13:35:24,679 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 33 [2021-11-05 13:35:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:24,680 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2021-11-05 13:35:24,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5625) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2021-11-05 13:35:24,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 13:35:24,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:24,681 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:24,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:24,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:35:24,882 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:35:24,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1092902360, now seen corresponding path program 2 times [2021-11-05 13:35:24,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:35:24,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117097986] [2021-11-05 13:35:24,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:35:24,884 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:35:24,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:35:24,886 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:35:24,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 13:35:25,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:35:25,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:35:25,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-05 13:35:25,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:25,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:35:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:27,662 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:35:27,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117097986] [2021-11-05 13:35:27,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117097986] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:35:27,662 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:35:27,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-11-05 13:35:27,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777192459] [2021-11-05 13:35:27,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:35:27,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-05 13:35:27,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:35:27,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-05 13:35:27,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2021-11-05 13:35:27,664 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand has 32 states, 32 states have (on average 1.78125) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:28,300 INFO L93 Difference]: Finished difference Result 141 states and 162 transitions. [2021-11-05 13:35:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-05 13:35:28,302 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.78125) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-05 13:35:28,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:28,313 INFO L225 Difference]: With dead ends: 141 [2021-11-05 13:35:28,314 INFO L226 Difference]: Without dead ends: 88 [2021-11-05 13:35:28,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1894.09ms TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2021-11-05 13:35:28,316 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 527.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.78ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 614.42ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:28,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1446 Invalid, 305 Unknown, 0 Unchecked, 3.78ms Time], IncrementalHoareTripleChecker [15 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 614.42ms Time] [2021-11-05 13:35:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-05 13:35:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-05 13:35:28,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 87 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:28,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2021-11-05 13:35:28,324 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 41 [2021-11-05 13:35:28,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:28,325 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2021-11-05 13:35:28,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.78125) internal successors, (57), 32 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:28,325 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2021-11-05 13:35:28,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-05 13:35:28,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:28,326 INFO L514 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:28,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-05 13:35:28,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:35:28,536 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-05 13:35:28,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1428389416, now seen corresponding path program 3 times [2021-11-05 13:35:28,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:35:28,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520098841] [2021-11-05 13:35:28,538 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-05 13:35:28,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:35:28,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:35:28,539 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:35:28,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-05 13:35:29,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-05 13:35:29,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:35:29,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-05 13:35:29,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:29,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 13:35:29,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2021-11-05 13:35:29,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-11-05 13:35:29,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:29,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2021-11-05 13:35:30,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2021-11-05 13:35:30,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 80 [2021-11-05 13:35:30,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 95 [2021-11-05 13:35:30,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 110 [2021-11-05 13:35:30,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:30,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 122 [2021-11-05 13:35:31,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,338 INFO L354 Elim1Store]: treesize reduction 264, result has 23.3 percent of original size [2021-11-05 13:35:31,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 114 treesize of output 137 [2021-11-05 13:35:31,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:31,844 INFO L354 Elim1Store]: treesize reduction 412, result has 17.9 percent of original size [2021-11-05 13:35:31,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 126 treesize of output 152 [2021-11-05 13:35:32,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,535 INFO L354 Elim1Store]: treesize reduction 574, result has 14.8 percent of original size [2021-11-05 13:35:32,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 30 case distinctions, treesize of input 138 treesize of output 167 [2021-11-05 13:35:32,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:32,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,332 INFO L354 Elim1Store]: treesize reduction 750, result has 12.8 percent of original size [2021-11-05 13:35:33,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 150 treesize of output 182 [2021-11-05 13:35:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:33,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:34,536 INFO L354 Elim1Store]: treesize reduction 940, result has 11.3 percent of original size [2021-11-05 13:35:34,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 36 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 162 treesize of output 197 [2021-11-05 13:35:35,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:35,976 INFO L354 Elim1Store]: treesize reduction 1144, result has 10.2 percent of original size [2021-11-05 13:35:35,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 36 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 69 case distinctions, treesize of input 174 treesize of output 212 [2021-11-05 13:35:36,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:36,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:35:37,137 INFO L354 Elim1Store]: treesize reduction 936, result has 7.9 percent of original size [2021-11-05 13:35:37,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 57 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 114 case distinctions, treesize of input 154 treesize of output 195 [2021-11-05 13:35:40,164 INFO L354 Elim1Store]: treesize reduction 882, result has 0.1 percent of original size [2021-11-05 13:35:40,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 36 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 144 treesize of output 62 [2021-11-05 13:35:40,289 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 21 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:40,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... Killed by 15